The district is pock-marked with caves.

这个地区布满了坑洞。

Ancient scrolls were found in caves by the Dead Sea.

在死海边的洞穴里发现了古代的卷轴。

The large limestone caves are also quarried for cement.

这些大石灰岩洞也用来开采水泥原料。

Bears often hibernate in caves.

熊常在山洞里冬眠。

Bats also live in caves.

蝙蝠也住在山洞里。

The guide led us through the maze of caves.

那个向导领我们穿过迷宫般的曲折洞穴。

Yes, so there's two kinds of limestone caves.

是的，所以有两种石灰岩洞穴。

They lived in caves, hunted animals and gathered fruit.

他们住在山洞里，猎取野兽，采集果子。

There is solid evidence that they lived in these caves, regardless of the cold.

有确凿的证据证明不管有多冷他们都住在这些洞穴里。

Pictures of this kind have been found on the walls of caves in France and Spain.

在法国和西班牙的洞穴墙壁上也发现过类似的照片。

The fungus may be carried on the boots and gear of humans who poke about in caves.

这种真菌可能携带在洞穴里闲逛的人的靴子和装备上。

It makes you learn how people lived in stone caves hundreds of years ago in this area.

它让你了解到几百年前这个地区的人们是如何生活在石洞里的。

It's one of the longest and deepest limestone caves not just in the country but in the world.

它不仅是美国最长最深的石灰岩洞穴之一，也是世界上最长最深的石灰岩洞穴之一。

Explorers even need to wear special masks to protect themselves from the gases in these caves.

探险家们甚至需要戴上特殊的面具来保护自己不受洞穴里气体的伤害。

Other known caves from the same geographical area and time period contain only paintings of plants.

同一地理区域和同一时期的其他已知洞穴中，只有有关植物的绘画。

With a little help from this carbonic acid, moving water forms most of the world's limestone caves.

在这种碳酸的帮助下，流动的水创造了世界上大部分的石灰岩洞穴。

The Saharan people left a remarkable record of their lives painted on the walls of caves deep in the desert.

撒哈拉人在沙漠深处洞穴的墙壁上留下了他们生活的惊人记录。

Sunlight reflecting off the water gives these caves their blue hue, making them popular for boating and diving.

海水反射的阳光使这些洞穴呈现出蓝色，使它们成为划船和潜水的好去处。

Now there are some pretty interesting caves in parts of the western United States, especially in national parks.

现在在美国西部的一些地方有一些非常有趣的洞穴，尤其是在国家公园里。

Now, places have been found on earth that are in total blackness, such as caves several miles beneath the ocean.

现在，已经发现地球上有完全黑暗的地方，比如海洋下方数英里的洞穴。

But now, places have been found on earth that are in total blackness, such as caves several miles beneath the ocean.

但是现在，已经发现在地球上存在完全黑暗的地方，比如海洋下面几英里的洞穴里。

The nocturnal animals hide in underwater caves by day, then venture out at night, feeding on small fish, squid, and octopus.

这种夜行性动物白天时隐藏在水底洞穴里，晚上才出来冒险，它们以小鱼、乌贼和章鱼为食。

Another famous boneyard in the same region is a place called Wellington Caves, where Diprotodon, the largest known marsupial, was first discovered.

同一地区另一个著名的坟场是个叫做惠灵顿洞穴的地方，人们在那里第一次发现了双门齿兽——目前已知的最大的有袋类动物。

When you reflect on how far we humans have come from the prehistoric caves to mind-blowing technological advancements, you would feel the power of imagination.

当你回想起我们人类从史前的洞穴到令人叹为观止的科技进步，你会感受到想象力的威力。

In the northern peninsula the elevation is sufficiently low that the ancient Maya were able to reach the water table at deep sinkholes called cenotes, or at deep caves.

在半岛北部，海拔足够低，因此古玛雅人能够经由被称为竖井的深层排水口或深洞探及地下水位。

When I was researching this for a study a few years ago, I visited a couple of these typical limestone caves, and they were all very wet, you know, from streams and rivers.

几年前我做这项研究时，我探访了其中几个比较典型的洞穴，它们都很潮湿，你们也知道这是因为小溪和河流的缘故。

Radiocarbon dating of fossils taken from caves on islands along southeastern Alaska's coast suggest that at least a portion of the area was remaining ice-free during the last ice age.

从阿拉斯加东南海岸岛屿的洞穴中提取的化石的放射性碳年代测定法表明，在最后一个冰河时代，该地区至少有一部分保持无冰状态。

The caves extend for some 12 miles.

这些洞穴延伸约12英里。

The caves can be visited only by prior arrangement.

这些洞穴只能预约参观。

Visitors can also explore caves.

游客还可以探索洞穴。